/* button.css — Phase 1 ships only solid / default / md.
 * Codex concern #7: no CSS nesting (`&:hover`). All pseudo-class rules are
 * declared as top-level selectors so the file is portable across every
 * Tailwind v4 standalone processing mode.
 */

.ui-button {
  display: inline-flex;
  align-items: center;
  font-family: inherit;
  font-size: 1rem;
  line-height: 1.25;
  border: 1px solid transparent;
  cursor: pointer;
  user-select: none;
  text-decoration: none;
}

.ui-button:focus-visible {
  outline: 2px solid #1d4ed8;
  outline-offset: 2px;
}

.ui-button.htmx-request {
  opacity: 0.6;
  pointer-events: none;
}

.ui-button-solid-default-md {
  display: inline-flex;
  align-items: center;
  border-radius: 0.375rem;
  background-color: #2563eb;
  padding: 0.5rem 1rem;
  font-size: 1rem;
  font-weight: 600;
  color: #ffffff;
}

.ui-button-solid-default-md:hover {
  background-color: #1d4ed8;
}

.ui-button-solid-default-md:focus-visible {
  outline: 2px solid #1d4ed8;
  outline-offset: 2px;
}

/* Phase 3: Danger (solid) and Neutral-soft button variants. */
/* Codex concern #7: no CSS nesting — all pseudo-class rules are top-level. */

.ui-button-solid-danger-md {
  display: inline-flex;
  align-items: center;
  border-radius: 0.375rem;
  background-color: #b91c1c;
  padding: 0.5rem 1rem;
  font-size: 1rem;
  font-weight: 600;
  color: #ffffff;
  min-height: 44px;
}

.ui-button-solid-danger-md:hover {
  background-color: #991b1b;
}

.ui-button-solid-danger-md:focus-visible {
  outline: 2px solid #b91c1c;
  outline-offset: 2px;
}

.ui-button-soft-neutral-md {
  display: inline-flex;
  align-items: center;
  border-radius: 0.375rem;
  background-color: #f1f5f9;
  padding: 0.5rem 1rem;
  font-size: 1rem;
  font-weight: 400;
  color: #334155;
  border: 1px solid #e2e8f0;
  min-height: 44px;
}

.ui-button-soft-neutral-md:hover {
  background-color: #e2e8f0;
}

.ui-button-soft-neutral-md:focus-visible {
  outline: 2px solid #64748b;
  outline-offset: 2px;
}

/* Phase 4: Soft-danger button variant for task delete actions. */
/* Codex concern #7: no CSS nesting — all pseudo-class rules are top-level. */

.ui-button-soft-danger-md {
  display: inline-flex;
  align-items: center;
  border-radius: 0.375rem;
  background-color: #fee2e2;
  padding: 0.5rem 1rem;
  font-size: 1rem;
  font-weight: 600;
  color: #b91c1c;
  border: 1px solid #fecaca;
  min-height: 44px;
}

.ui-button-soft-danger-md:hover {
  background-color: #fecaca;
}

.ui-button-soft-danger-md:focus-visible {
  outline: 2px solid #b91c1c;
  outline-offset: 2px;
}

/* Phase 8: neutral provider controls for social sign-in. */

.auth-provider-stack {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

.auth-provider-button {
  display: inline-flex;
  min-height: 44px;
  width: 100%;
  align-items: center;
  justify-content: center;
  border-radius: 0.375rem;
  border: 1px solid #e2e8f0;
  background-color: #ffffff;
  padding: 0.625rem 1rem;
  color: #0f172a;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.25;
  text-align: center;
  text-decoration: none;
}

.auth-provider-button:hover {
  background-color: #f8fafc;
}

.auth-provider-button:focus-visible {
  outline: 2px solid #2563eb;
  outline-offset: 2px;
}

.auth-provider-button-disabled,
.auth-provider-button-disabled:hover {
  background-color: #f1f5f9;
  color: #94a3b8;
  cursor: not-allowed;
}

.auth-provider-separator {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 8px;
  margin: 16px 0;
  color: #64748b;
  font-size: 0.875rem;
  line-height: 1.4;
}

.auth-provider-separator span {
  height: 1px;
  background-color: #e2e8f0;
}

.auth-provider-separator em {
  font-style: normal;
}